[Request] Copy Posts from one Usergroup to Another after XX days

[punchy]

Hi all,

This is a strange one but it could be useful for a variety of sites..

My idea is to have RSS posts posting into a Special Usergroup forum, and then say after 7 days its posted into the general members Forums, Automatically

Basically i have a membership group who i would Like to have priority over some RSS feeds before generally adding them to the members in general forums

Does anyone know of a mod like this or do knock something up?

Thanks

Gerry